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Topological phases and quantum computation

Kitaev, Alexei and Laumann, Christopher (2008) Topological phases and quantum computation. In: Exact methods in low-dimensional statistical physics and quantum computing. Lecture Notes of the Les Houches Summer School. No.89. Oxford University Press , Oxford, pp. 101-125. ISBN 0-19-957461-8. http://resolver.caltech.edu/CaltechAUTHORS:20110207-134954371

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Abstract

The basic building block of quantum computation is the qubit, a system with two (nearly) degenerate states that can be used to encode quantum information. Real systems typically have a full spectrum of excitations that are considered illegal from the point of view of a computation, and lead to decoherence if they couple too strongly into the qubit states during some process (see Fig. 4.1). The essential problem, then, is to preserve the quantum state of the qubit as long as possible to allow time for computations to take place.


Item Type:Book Section
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https://arxiv.org/abs/0904.2771arXivDiscussion Paper
Additional Information:© 2010 Oxford University Press. Notes written by C. Laumann.
Record Number:CaltechAUTHORS:20110207-134954371
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20110207-134954371
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22054
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Mar 2011 20:34
Last Modified:07 Aug 2018 21:01

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